I provided a couple of the xLights xml files here:
http://www.coppercreeklights.com/sequences/2014/LetItGo_DMX.xml
http://www.coppercreeklights.com/sequences/2014/GanghamStyle_DMX.xml
If nothing else you can grab my timings I created in Audacity for Let It Go and that might help someone just starting on the song. I was real quick with the labels just trying to add a word or two for knowing where in the song it was. For GanghamStyle you can see how I mainly used xLights to add NC effects to the pixel tree on the left. I have it do an effect and then you will see it have a "None, None" entry which lets it go back to run the imported LOR data. My workflow this year got complex. Sometimes I was working in Superstar and then exporting/importing into LOR. Then I needed to copy data from the 12 ribbon tree to the 32 string megatree which only had 42 pixels and the ribbons had 50 so I had to truncate 8 pixels. The worst part was the pixel tree had up/down layout and the ribbon tree was up/up so I had to use ItsMeBob's ClipboardFlipper to reverse every other ribbon when copying the data over. Then I converted the LOR sequence into xLights and added NC effects.
The oversized arches have a story behind them. Before I started doing DIY ribbons and pixels I bought 5 CCR's from LOR. So the 4 arches and circle are still those CCRs. Two years ago I started with 8 arches having each of 4 CCR's covering two arches apiece. So the first 2 arches faced forward and the second 2 kinda went back into the yard along the sides. This video shows my 2012 placement of the arches:https://www.youtube.com/watch?v=GlZjcpvvsSI
So I didn't feel like the arches going back into the yard were very visible so I literally was out in the yard in 2013 setting up and got the idea to put two of my pvc pieces together and run the entire CCR on one arch so I would have two large arches facing forward on both sides of the yard. After setting it up they really seemed to jump out at you so I kept it. The setup is simple. I pound a piece of rebar into the ground at an angle on both sides and slide the gray electrical conduit over the rebar. I think I cut about a foot off of each 10' conduit so the total length is about 18' leaving a foot on each side so the 16' CCR doesn't go all the way to the ground. I place the distance so that the arch is about 6' tall. I check by seeing if it will barely touch my head when I walk under it.

It's amazing they stand up when you look at them cause if you tap the top it wiggles like crazy. I just tie wrap the CCR's to the conduit.